Improper input validation in Cisco iOS
CVE-2016-6380
The DNS forwarder in Cisco IOS 12.0 through 12.4 and 15.0 through 15.6 and IOS XE 3.1 through 3.15 allows remote attackers to obtain sensitive information from process memory or cause a denial of service (data corruption or device reload) via a crafted DNS response, aka Bug ID CSCup90532.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.030 (86.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000
Affected products
- Cisco iOS — versions 12.2(2)xf2, 12.2\(8\)yy1, 12.4(15)t8
- Cisco iOS Xe — versions 3.1.0s, 3.1.0sg, 3.1.1s
- Cisco iOS Xe 3.2ja — versions 3.2.0ja
- Cisco iOS Xe 3.3sg — versions 3.3.0sg, 3.3.1sg, 3.3.2sg
- Cisco iOS Xe 3.3xo — versions 3.3.0xo, 3.3.1xo, 3.3.2xo
- Cisco iOS Xe 3.4sg — versions 3.4.0sg, 3.4.1sg, 3.4.2sg
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securitytracker.com/id/1036914 (vdb-entry)
- ics-cert.us-cert.gov/advisories/ICSA-16-287-04
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160928… (vendor-advisory, Vendor Advisory)
- www.securityfocus.com/bid/93201 (vdb-entry)
Frequently asked questions
- What is CVE-2016-6380?
- CVE-2016-6380 is a high-severity vulnerability in Cisco iOS, classified under Improper Input Validation. CVSS score: 8.1/10. Published 2016-10-05.
- How severe is CVE-2016-6380?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2016-6380 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.